Arcellx, Inc.
ACLXDelisted Apr 28, 2026- Industry
- Biological Products, (No Diagnostic Substances)
- SEC CIK
- 0001786205
Arcellx, Inc. was delisted on Apr 28, 2026; its insiders filed their last Form 4 on Apr 28, 2026; 240 institutions reported holding it in 13F filings for Q1 2026, worth $6.52B in total; Soros Fund Management was the only superinvestor holding it.
13F holders, Q4 2024
Institutional positions in Arcellx, Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 211
- +27 vs. Q3 2024
- Shares held
- 59.2M
- +9.81M (+19.9%) vs. Q3 2024
- Total value
- $4.54B
- +$416.0M (+10.1%) vs. Q3 2024
- New holders
- 52
- 75 more added
- Sold out
- 25
- 55 more reduced
2 institutions that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting ACLX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 2 | $3.43M |
| Q1 2026 | 240 | $6.52B |
| Q4 2025 | 218 | $4.34B |
| Q3 2025 | 209 | $5.18B |
| Q2 2025 | 203 | $4.01B |
| Q1 2025 | 198 | $4.04B |
| Q4 2024 | 211 | $4.54B |
| Q3 2024 | 186 | $4.13B |
| Q2 2024 | 167 | $2.77B |
| Q1 2024 | 183 | $3.27B |
| Q4 2023 | 156 | $2.59B |
| Q3 2023 | 136 | $1.71B |
| Q2 2023 | 138 | $1.52B |
| Q1 2023 | 117 | $1.40B |
| Q4 2022 | 125 | $1.30B |
| Q3 2022 | 74 | $781.8M |
| Q2 2022 | 68 | $621.5M |
| Q1 2022 | 49 | $357.9M |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Arcellx, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| STRS Ohio | 14,300 | $1.10M | 0.00% | +2,200+18.2% | Added |
| Profund Advisors LLC | 14,008 | $1.07M | 0.04% | +2,563+22.4% | Added |
| HighTower Advisors, LLC | 12,582 | $964.9K | 0.00% | +97+0.8% | Added |
| Jasper Ridge Partners, L.P. | 11,820 | $906.5K | 0.03% | 00.0% | Unchanged |
| Handelsbanken Fonder AB | 11,600 | $890.0K | 0.00% | −1,000−7.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 11,466 | $879.3K | 0.08% | +1,127+10.9% | Added |
| Allianz Asset Management GmbH | 11,100 | $851.3K | 0.00% | +1,000+9.9% | Added |
| State Board of Administration of Florida Retirement System | 10,850 | $832.1K | 0.00% | 00.0% | Unchanged |
| Acuta Capital Partners, LLC | 10,743 | $823.9K | 0.83% | −51,357−82.7% | Reduced |
| Moody Aldrich Partners LLC | 10,683 | $819.3K | 0.15% | −16,122−60.1% | Reduced |
| Walleye Capital LLC | 10,659 | $817.4K | 0.01% | +10,659 | New |
| Gotham Asset Management, LLC | 10,508 | $805.9K | 0.01% | −2,493−19.2% | Reduced |
| Scientech Research LLC | 10,281 | $788.5K | 0.22% | +10,281 | New |
| Ameriprise Financial Inc | 10,171 | $780.0K | 0.00% | −945−8.5% | Reduced |
| Diadema Partners LP | 10,100 | $774.6K | 0.87% | +10,100 | New |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 9,836 | $754.3K | 0.00% | +858+9.6% | Added |
| SEI Investments Co | 9,688 | $743.0K | 0.00% | +4,827+99.3% | Added |
| Teacher Retirement System of Texas | 9,556 | $733.0K | 0.00% | +1,505+18.7% | Added |
| Arizona State Retirement System | 9,343 | $716.5K | 0.00% | +99+1.1% | Added |
| LPL Financial LLC | 9,274 | $711.2K | 0.00% | +119+1.3% | Added |
| Police & Firemen's Retirement System of New Jersey | 9,182 | $704.2K | 0.01% | +9,182 | New |
| High Net Worth Advisory Group LLC | 8,500 | $651.9K | 0.18% | 00.0% | Unchanged |
| Guggenheim Capital LLC | 8,303 | $636.8K | 0.01% | +8,303 | New |
| Tower Research Capital LLC (TRC) | 7,984 | $612.3K | 0.01% | +7,308+1,081.1% | Added |
| Y-Intercept (Hong Kong) Ltd | 7,735 | $593.2K | 0.04% | +3,831+98.1% | Added |
| Advisors Asset Management, Inc. | 7,651 | $586.8K | 0.01% | +1,455+23.5% | Added |
| Bryce Point Capital, LLC | 7,475 | $573.3K | 0.17% | +7,475 | New |
| NEOS Investment Management LLC | 7,468 | $572.7K | 0.01% | −4,442−37.3% | Reduced |
| Tema ETFs LLC | 7,468 | $572.7K | 0.24% | +7,468 | New |
| Verition Fund Management LLC | 7,449 | $571.3K | 0.00% | +7,449 | New |
| Trexquant Investment LP | 7,237 | $555.0K | 0.01% | +7,237 | New |
| Fieldview Capital Management, LLC | 7,237 | $555.0K | 0.09% | +7,237 | New |
| Mariner, LLC | 6,980 | $535.3K | 0.00% | +1,915+37.8% | Added |
| Two Sigma Investments, LP | 6,900 | $529.2K | 0.00% | −18,228−72.5% | Reduced |
| Algert Global LLC | 6,844 | $524.9K | 0.01% | +6,844 | New |
| KLP Kapitalforvaltning AS | 6,600 | $506.2K | 0.00% | +6,600 | New |
| HSBC Holdings PLC | 6,383 | $496.5K | 0.00% | +3,410+114.7% | Added |
| Brevan Howard Capital Management LP | 6,079 | $466.2K | 0.01% | +6,079 | New |
| US Bancorp | 6,023 | $461.9K | 0.00% | −1,580−20.8% | Reduced |
| Legato Capital Management LLC | 5,999 | $460.1K | 0.06% | +1,591+36.1% | Added |
| Two Sigma Advisers, LP | 5,600 | $429.5K | 0.00% | +1,100+24.4% | Added |
| Squarepoint Ops LLC | 5,330 | $408.8K | 0.00% | +5,330 | New |
| E Fund Management Co., Ltd. | 5,049 | $387.2K | 0.02% | +1,467+41.0% | Added |
| Allspring Global Investments Holdings, LLC | 5,000 | $383.4K | 0.00% | −1,948−28.0% | Reduced |
| Pictet Asset Management Holding SA | 4,945 | $379.2K | 0.00% | +1,426+40.5% | Added |
| Ameritas Investment Partners, Inc. | 4,367 | $334.9K | 0.01% | 00.0% | Unchanged |
| Jump Financial, LLC | 4,359 | $334.3K | 0.01% | +4,359 | New |
| Creative Planning | 4,193 | $321.6K | 0.00% | +4,193 | New |
| SBI Securities Co., Ltd. | 4,123 | $316.2K | 0.01% | +4,123 | New |
| FORA Capital, LLC | 4,064 | $311.7K | 0.04% | −8,871−68.6% | Reduced |
| CIBC World Markets Corp | 4,033 | $309.3K | 0.00% | +4,033 | New |
| Farallon Capital Management, L.L.C. | 4,000 | $306.8K | 0.00% | 00.0% | Unchanged |
| ADAR1 Capital Management, LLC | 3,962 | $303.8K | 0.06% | 00.0% | Unchanged |
| Sherbrooke Park Advisers LLC | 3,805 | $291.8K | 0.09% | +3,805 | New |
| Principal Financial Group Inc | 3,679 | $282.1K | 0.00% | −339−8.4% | Reduced |
| Mercer Global Advisors Inc | 3,619 | $277.5K | 0.00% | +3,619 | New |
| Integrated Wealth Concepts LLC | 3,426 | $262.7K | 0.00% | −64−1.8% | Reduced |
| Mackenzie Financial Corp | 3,301 | $253.2K | 0.00% | 00.0% | Unchanged |
| Public Employees Retirement Association of Colorado | 3,217 | $247.0K | 0.00% | 00.0% | Unchanged |
| Prudential Financial Inc | 3,120 | $239.3K | 0.00% | 00.0% | Unchanged |
| Xponance, Inc. | 3,088 | $236.8K | 0.00% | +244+8.6% | Added |
| Bellevue Group AG | 3,000 | $230.1K | 0.00% | −1,000−25.0% | Reduced |
| Advisory Alpha, LLC | 3,000 | $230.1K | 0.01% | 00.0% | Unchanged |
| JustInvest LLC | 2,809 | $215.4K | 0.00% | +212+8.2% | Added |
| Landscape Capital Management, L.L.C. | 2,793 | $214.2K | 0.02% | +2,793 | New |
| Envestnet Asset Management Inc | 2,747 | $210.7K | 0.00% | −999−26.7% | Reduced |
| Kazazian Asset Management, LLC | 2,660 | $204.0K | 0.16% | +2,660 | New |
| Avanza Fonder AB | 2,398 | $183.9K | 0.01% | +2,398 | New |
| Exchange Traded Concepts, LLC | 2,175 | $166.8K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global Investments Co., Ltd. | 1,802 | $142.5K | 0.00% | −142−7.3% | Reduced |
| Covestor Ltd | 1,448 | $111.0K | 0.07% | −168−10.4% | Reduced |
| KBC Group NV | 1,388 | $106.0K | 0.00% | +377+37.3% | Added |
| Amalgamated Bank | 1,347 | $103.0K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 1,135 | $87.0K | 0.00% | +1,135 | New |
| Royal Bank of Canada | 883 | $68.0K | 0.00% | −4,107−82.3% | Reduced |
| Virtus ETF Advisers LLC | 852 | $65.3K | 0.03% | −799−48.4% | Reduced |
| Nisa Investment Advisors, LLC | 597 | $45.8K | 0.00% | +33+5.9% | Added |
| Headlands Technologies LLC | 529 | $40.6K | 0.00% | +529 | New |
| The PNC Financial Services Group, Inc. | 291 | $22.3K | 0.00% | +246+546.7% | Added |
| GAMMA Investing LLC | 242 | $18.6K | 0.00% | +10+4.3% | Added |
| Caitong International Asset Management Co., Ltd | 239 | $18.3K | 0.02% | +239 | New |
| Daiwa Securities Group Inc. | 178 | $14.0K | 0.00% | −26−12.7% | Reduced |
| Turim 21 Investimentos Ltda. | 179 | $12.2K | 0.00% | 00.0% | Unchanged |
| Smartleaf Asset Management LLC | 155 | $12.1K | 0.00% | +42+37.2% | Added |
| Advisor Group Holdings, Inc. | 119 | $9.13K | 0.00% | +1+0.8% | Added |
| CWM, LLC | 90 | $7.00K | 0.00% | +9+11.1% | Added |
| Comerica Bank | 85 | $6.49K | 0.00% | +7+9.0% | Added |
| Rothschild Investment LLC | 45 | $3.45K | 0.00% | 00.0% | Unchanged |
| Meeder Asset Management Inc | 45 | $3.45K | 0.00% | +45 | New |
| Aventura Private Wealth, LLC | 45 | $3.45K | 0.00% | +45 | New |
| Sterling Capital Management LLC | 44 | $3.37K | 0.00% | 00.0% | Unchanged |
| Fortitude Family Office, LLC | 38 | $2.91K | 0.00% | 00.0% | Unchanged |
| Clearstead Advisors, LLC | 33 | $2.53K | 0.00% | −21−38.9% | Reduced |
| Bessemer Group Inc | 30 | $2.00K | 0.00% | 00.0% | Unchanged |
| EverSource Wealth Advisors, LLC | 21 | $1.61K | 0.00% | +21 | New |
| CoreCap Advisors, LLC | 19 | $1.46K | 0.00% | +19 | New |
| Wolff Wiese Magana LLC | 17 | $1.30K | 0.00% | 00.0% | Unchanged |
| SRS Capital Advisors, Inc. | 14 | $1.07K | 0.00% | +14 | New |
| Assetmark, Inc | 10 | $767 | 0.00% | +10 | New |
| Farther Finance Advisors, LLC | 8 | $614 | 0.00% | 00.0% | Unchanged |